Sencha Designer / Ext JS 4 MVC / Event Listener / getLayout

Sencha Designer Build: 309
Ext-JS 4 version 4.0.7

Sumamry:
All actions are performed in Sencha Designer:
Created a panel class with card layout. The card layout contains a toolbar with two buttons: next and prev.
Created a controller and added controller action to listen for a button click for the next button.
Added the panel to the controller "views".